How do I unlock phone if I do not remember the password?

Depending on the model, you might want to resort to a factory reset - in some newer models, you might need to enter your Microsoft credentials before you can successfully reset your phone if the device already has reset protection.

Depending on the model, you might want to resort to a factory reset - in some newer models, you might need to enter your Microsoft credentials before you can successfully reset your phone if the device already has reset protection.